An old man is no a fast train.He brings a pair of new shoes with him.Suddenly,one of the shoes falls out of the window of the train because of the man's carelessness.All the people on the train are sorry for him,but the old man quickly throws the other shoe out of the window.
"Why do you do that?"other people ask in surprise.
The old man says with a smile,"One shoe,no matter how expensive it is,is no use.But if anyone else can pick up a pair of shoes,he can wear it!"怎么翻译